• Title/Summary/Keyword: Korean corpus

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A review of corpus research trends in Korean education (한국어 교육 관련 국내 코퍼스 연구 동향)

  • Shim, Eunji
    • Asia Pacific Journal of Corpus Research
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    • v.2 no.2
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    • pp.43-48
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    • 2021
  • The aim of this study is to analyze the trends of corpus driven research in Korean education. For this purpose, a total of 14 papers was searched online with the keywords including Korean corpus and Korean education. The data was categorized into three: vocabulary education, grammar education and corpus data construction methods. The analysis results suggest that the number of corpus studies in the field of Korean education is not large enough but continues to increase, especially in the research on data construction tools. This suggests there is a significant demand in corpus driven studies in Korean education field.

A Study on the Male Vowel Formants of the Korean Corpus of Spontaneous Speech (한국어 자연발화 음성코퍼스의 남성 모음 포먼트 연구)

  • Kim, Soonok;Yoon, Kyuchul
    • Phonetics and Speech Sciences
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    • v.7 no.2
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    • pp.95-102
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    • 2015
  • The purpose of this paper is to extract the vowel formants of the ten adult male speakers in their twenties and thirties from the Korean Corpus of Spontaneous Speech [4], also known as the Seoul corpus, and to analyze them by comparing to earlier works on the Buckeye Corpus of Conversational Speech [1] in terms of the various linguistic factors that are expected to affect the formant distribution. The vowels extracted from the Korean corpus were also compared to those of the read Korean. The results showed that the distribution of the vowel formants from the Korean corpus was very different from that of read Korean speech. The comparison with English corpus and read English speech showed similar patterns. The factors affecting the Korean vowel formants were the interviewer sex, the location of the target vowel or the syllable containing it with respect to the phrasal word or utterance and the speech rate of the surrounding words.

A Study on the Melanin Synthesis Inhibition and Whitening Effect of Bombysis Corpus (백강잠의 멜라닌 생성 억제와 미백효과에 관한 연구)

  • Oh, Han-Cheol;Lim, Kyu-Sang;Hwang, Chung-Yeon;Youn, In-Hwan;Kim, Nam-Kwen
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.20 no.3
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    • pp.1-13
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    • 2007
  • Objective : This study was performed to assess the whitening effect of Bombysis Corpus on melanin synthesis. Methods : The whitening effects of Bombysis Corpus were examined by in vitro melanin production assay. We assessed inhibitory effects of Bombysis Corpus on melanin-release from B16F10, on melanin production in B16F10, on mushroom tyrosinase activity in vitro, on tyrosinase activity in B16F10, effect of Bombysis Corpus on the expression tyrosinase, TRP-1, PKA, ERK-1 ERK-2, AKT-1, MITF in B16F10. Results : 1. Bombysis Corpus inhibited melanin-release, melanin production in B16F10. 2. Bombysis Corpus inhibited tyrosinase activity in vitro and in B16F10. 3. Bombysis Corpus suppressed the expression of tyrosinase, TRP-1 in B16F10. 4. Bombysis Corpus suppressed the expression of PKA in B16F10. 5. Bombysis Corpus suppressed the expression of ERK-1, ERK-2, AKT-1 in B16F10. 6. Bombysis Corpus suppressed the expression of MITF in B16F10. Conclusion : The study shows that Bombysis Corpus inhibited melanin production on the melanogenesis.

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The Statistical Relationship between Linguistic Items and Corpus Size (코퍼스 빈도 정보 활용을 위한 적정 통계 모형 연구: 코퍼스 규모에 따른 타입/토큰의 함수관계 중심으로)

  • 양경숙;박병선
    • Language and Information
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    • v.7 no.2
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    • pp.103-115
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    • 2003
  • In recent years, many organizations have been constructing their own large corpora to achieve corpus representativeness. However, there is no reliable guideline as to how large corpus resources should be compiled, especially for Korean corpora. In this study, we have contrived a new statistical model, ARIMA (Autoregressive Integrated Moving Average), for predicting the relationship between linguistic items (the number of types) and corpus size (the number of tokens), overcoming the major flaws of several previous researches on this issue. Finally, we shall illustrate that the ARIMA model presented is valid, accurate and very reliable. We are confident that this study can contribute to solving some inherent problems of corpus linguistics, such as corpus predictability, corpus representativeness and linguistic comprehensiveness.

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A clinical Study on 2 Cases of Hemorrhagic Corpus Luteal Cyst (출혈성 황체 낭종 치험례)

  • Park, Kyung-Mi
    • The Journal of Korean Obstetrics and Gynecology
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    • v.27 no.4
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    • pp.121-132
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    • 2014
  • Objectives: The purpose of this study is to report the effects of herbal medicine on corpus luteum and luteal hemorrhage. Ovulation is a physical event and hemorrhage from corpus luteum is known to occur in reproductive age group women. Life threatening hemorrhage requires surgical intervention and blood transfusion. Methods: The patients of this study are 34-year-old and 16-year-old females. They were diagnosed as the hemorrhagic corpus luteal cyst. Two patients was advised to be operated beacause of rupture possibility. They were treated by traditional Korean Medicine, herbal medicine (Bokryungdosu-tang), acupuncture and moxibustion. Results: After the treatment, the patients recovered their condition. One patient was diagnosed with disappearance of existing corpus luteum, the other was relieved of heavy abdominal pain, vaginal discharge and lumbago. Conclusions: Thess cases show that traditional Korean treatment might be effective on corpus luteum and luteal hemorrhage.

Use of ultrasonography for improving reproductive efficiency in cows II. Comparative evaluation of ovarian structures using ultrasonography and plasma progesterone analysis in subestrous dairy cows (초음파 진단장치를 이용한 축우의 번식효율증진에 관한 연구 II. 무발정 젖소에서 초음파검사 및 progesterone 농도측정에 의한 난소 구조물의 비교평가)

  • Son, Chang-ho;Kang, Byong-kyu;Choi, Han-sun;Kang, Hyun-gu;Paik, In-seok;Suh, Guk-hyun
    • Korean Journal of Veterinary Research
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    • v.38 no.3
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    • pp.642-651
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    • 1998
  • The accuracy of ultrasonography for determining the presence of a functional corpus luteum in subestrous dairy cows was investigated, using a radioimmunoassay for progesterone in plasma. Luteal status (high or low progesterone concentrations) was diagnosed in 534 cows, using B-mode transrectal ultrasonography. Accuracy of ultrasonography was 96.3% and 88.8% in the cows with and without functional corpus luteum, respectively. In 362 cows diagnosed with functional corpus luteum by ultrasonographic examination, 20 cows were diagnosed with the non-functional corpus luteum by analysis of plasma progesterone concentrations (false positive). In 172 cows with non-functional corpus luteum by ultrasonographic examination, 13 cows were diagnosed with the functional corpus luteum based on plasma progesterone assay (false negative). Most of the corpus luteum with well-defined border and homogeneous echotexture were diagnosed with functional corpus luteum. All cows that were not detected a corpus luteum by ultrasonographic examination were diagnosed as non-functional corpus luteum. The corpus luteum of cows that were diagnosed with false positive appeared homogeneous echotexture and above 15 mm in diameter, but the corpus luteum was the non-functional corpus luteum within Day 5 (Day 0 is ovulation day) or after Day 19. The corpus luteum of cows that were diagnosed with false negative appeared heterogeneous echogenicity and below 15 mm in diameter, but the corpus luteum was the functional corpus luteum after Day 5 or around Day 17. It was concluded that accuracy of ultrasonography was excellent for determining the presence of a functional corpus luteum in subestrous dairy cows. The corpus luteum that was diagnosed with false positive or false negative was the developing or regressing states. Thus, ultrasonography was required a serial examination of two or three times accurately diagnosing these corpus luteum.

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『Asia Pacific Journal of Corpus Research』 (1 권 1 호의 연구 동향과 연구 방법에 관한 고찰)

  • Jung, Chae Kwan
    • Asia Pacific Journal of Corpus Research
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    • v.1 no.1
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    • pp.127-132
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    • 2020
  • The purpose of this review is to provide local readers, more specifically, Korean student readers who are not all that familiar with the English language a general overview of research articles that have been published in Asia Pacific Journal of Corpus Research vol. 1, no. 1. A brief summary of each research article focusing on research methods and then followed by an overall review and some insights on research issues will be presented.

A Comparative Study on the Male and Female Vowel Formants of the Korean Corpus of Spontaneous Speech (한국어 자연발화 음성코퍼스의 남녀 모음 포먼트 비교 연구)

  • Yoon, Kyuchul;Kim, Soonok
    • Phonetics and Speech Sciences
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    • v.7 no.2
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    • pp.131-138
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    • 2015
  • The aim of this work is to compare the vowel formants of the ten adult female speakers in their twenties and thirties from the Seoul corpus[7] with those of corresponding Korean male speakers from the same corpus and of American female speakers from the Buckeye corpus[4]. In addition, various linguistic factors that are expected affect the formant frequencies were examined to account for the distribution of the vowel formants. Formant frequencies extracted from the Seoul corpus were also compared to those from read speech. The results showed that the formant distribution of the spontaneous speech was very different from that of the read speech, while the comparison between the female and male speakers was similar in both languages. To a greater or lesser degree, the potential linguistic factors influenced the formant frequencies of the vowels.

Synthetic Speech Quality Improvement By Glottal parameter Interpolation - Preliminary study on open quotient interpolation in the speech corpus - (성대특성 보간에 의한 합성음의 음질향상 - 음성코퍼스 내 개구간 비 보간을 위한 기초연구 -)

  • Bae, Jae-Hyun;Oh, Yung-Hwa
    • Proceedings of the KSPS conference
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    • 2005.11a
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    • pp.63-66
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    • 2005
  • For the Large Corpus based TTS the consistency of the speech corpus is very important. It is because the inconsistency of the speech quality in the corpus may result in a distortion at the concatenation point. And because of this inconsistency, large corpus must be tuned repeatedly One of the reasons for the inconsistency of the speech corpus is the different glottal characteristics of the speech sentence in the corpus. In this paper, we adjusted the glottal characteristics of the speech in the corpus to prevent this distortion. And the experimental results are showed.

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Environment for Translation Domain Adaptation and Continuous Improvement of English-Korean Machine Translation System

  • Kim, Sung-Dong;Kim, Namyun
    • International Journal of Internet, Broadcasting and Communication
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    • v.12 no.2
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    • pp.127-136
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    • 2020
  • This paper presents an environment for rule-based English-Korean machine translation system, which supports the translation domain adaptation and the continuous translation quality improvement. For the purposes, corpus is essential, from which necessary information for translation will be acquired. The environment consists of a corpus construction part and a translation knowledge extraction part. The corpus construction part crawls news articles from some newspaper sites. The extraction part builds the translation knowledge such as newly-created words, compound words, collocation information, distributional word representations, and so on. For the translation domain adaption, the corpus for the domain should be built and the translation knowledge should be constructed from the corpus. For the continuous improvement, corpus needs to be continuously expanded and the translation knowledge should be enhanced from the expanded corpus. The proposed web-based environment is expected to facilitate the tasks of domain adaptation and translation system improvement.